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Tunable synthesis of Fe-Ge alloy confined in oxide matrix and its application for energy storage
Wang, Xin1; Dong, Chenlong1; Lou, Minhe1; Dong, Wujie1; Yuan, Xiaotao1; Tang, Yufeng2; Huang, Fuqiang1,2
2017
Source PublicationJournal of Power Sources
ISSN03787753
Volume360Pages:124-128
AbstractThe Fe-Ge alloy nanoparticle and amorphous iron oxide shell (FeGe@Fe2O3) composite is synthesized by a facile arc-discharge method. The thickness of shell can be tuned regularly by the substitution of precursor. And then, the nanostructured core-shell FeGe@Fe2O3is investigated as an anode material for lithium ion battery firstly. The FeGe@Fe2O3harvests significantly enhanced reversible capacity of 1079.3 mA h g−1at 0.1 A g−1and 800 mA h g−1retention after 50 cycles, and the capacity performance is superior to Fe-Ge alloy nanoparticles (NPs). It also shows satisfactory rate capability of 467 mA h g−1at 2 A g−1and 232 mA h g−1at 5 A g−1, respectively, which is much better than bare Fe-Ge NPs. These good lithium storage performances are attributed to the amorphous oxide shell and the Fe-Ge alloy. To this end, this facile and tunable method provides a reasonable idea of controlling core-shell structure material precisely and this type of material can be large-scale synthesized. © 2017 Elsevier B.V.
DOI10.1016/j.jpowsour.2017.05.104
EI Accession Number20172403754947
EI KeywordsIron alloys
EI Classification Number408.2 Structural Members and Shapes - 482.2 Minerals - 545.2 Iron Alloys - 714.1 Electron Tubes - 761 Nanotechnology - 802.2 Chemical Reactions - 933 Solid State Physics
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25399
Collection中国科学院上海硅酸盐研究所
Affiliation1.State Key Laboratory of Rare Earth Materials Chemistry and Applications and National Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing; 100871, China;
2.State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China
Recommended Citation
GB/T 7714
Wang, Xin,Dong, Chenlong,Lou, Minhe,et al. Tunable synthesis of Fe-Ge alloy confined in oxide matrix and its application for energy storage[J]. Journal of Power Sources,2017,360:124-128.
APA Wang, Xin.,Dong, Chenlong.,Lou, Minhe.,Dong, Wujie.,Yuan, Xiaotao.,...&Huang, Fuqiang.(2017).Tunable synthesis of Fe-Ge alloy confined in oxide matrix and its application for energy storage.Journal of Power Sources,360,124-128.
MLA Wang, Xin,et al."Tunable synthesis of Fe-Ge alloy confined in oxide matrix and its application for energy storage".Journal of Power Sources 360(2017):124-128.
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